asJoinSource property

SdbJoinSource<K, V, I> get asJoinSource

This index as a join source, walked in index key order, its index key being the join key.

The shape to prefer: there is no key path to read, so an implementation able to join natively takes the join key straight from the index. A record with no index key is not in the index and never shows up.

Implementation

SdbJoinSource<K, V, I> get asJoinSource => _SdbJoinIndexSource<K, V, I>(this);